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nicehash takes care of deciding what to mine, it just benchmarks your rig on all the algorithms, so it knows what hashrate, divides that by the difficulty and the current price so you mine whatever is the most profitable. Currently it's mining a mix of lbry and equihash. I highly recommend nicehash.

Ahh Right. That's interesting. Will definitely look into it. Thanks.

Does it have so you can set electric cost and get that in the mix of the calculation, I mean it might show what coin is profitable to mine but if it use more power cost then the mining output.

yup, there is a calculator with a list of devices and profitability: https://www.nicehash.com/?p=calc including the power cost